单项选择题
A neutral equilibrium position for a vessel means that the metacenter is（）.
A.lower than the keel
B.at the same height as the center of gravity
C.exactly at midships
D.at the center of the waterplane area
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相关考题
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单项选择题
A load line of a ship is assigned by（）.
A.Minerals Management Service
B.Department of Energy
C.Corps of Engineers
D.A recognized classification society approved -
单项选择题
A floating vessel will behave as if all of its weight is acting downward through the（）.
A.center of gravity
B.center of buoyancy
C.center of flotation
D.metacenter -
单项选择题
A continual worsening of the list or trim indicates（）.
A.negative GM
B.progressive flooding
C.structural failure
D.an immediate need to ballast
